Largescale Coal Mine Hydraulic Supporting Toolcoal Mine Roof Support , Find from Other Mining Machines Supplier or ManufacturerShandong China Coal Group . DW single hydraulic prop is constant resistive pillar, which can match with a variety of roof beams and also could be used as the primary column.

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Up to now, with 500 mine EPC projects, 70 kinds of ores mining technologies and experience and 20 patents, Xinhai has established overseas offices in Sudan, Zimbabwe, Tanzania, Peru and Indonesia and exported to more than 20 countries.